I.Yu. Martynyuk-Lototska, R.O. Vlokh
The multichannel spectrum analyzers on the base of Michelson (with one acoustooptical modulator) and Mach-Zehnder (with two acoustooptical modulators) interferometers in which chirp transformation algorithm are designed and experimentally studied. As multichannel input acoustoptical deflector is used. Experimentally obtained performance characteristics for spectrum analyzer on the base of Michelson interferometer with PbMoO4 acoustooptical deflector and flint glass acoustooptical modulator are: bandwidth Df=3.3kHz and resolution 55Hz at time integration 20ms; and - on the base of Mach-Zehnder interferometer with TeO2 acoustooptical modulators and deflector are: bandwidth Df=9.25kHz, resolution 52Hz at time integration 20ms and 14Hz at time integration 80ms, respectively
Key words: acoustooptical modulator, acoustooptical deflector, chirp transformation, spectrum analyzer
doi 10.3116/16091833/2/2/76/2001
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doi:10.1063/1.93427
http://dx.doi.org/10.1063/1.93427